Velocity field measurements during drop formation by vortical flows in microgravity

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76261/1/AIAA-1998-734-638.pd

The propagation of a vortex ring through multiple liquid interfaces in microgravity

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76118/1/AIAA-1996-593-666.pd

Efficiency and persistence in models of adaptation

A cut-and-paste model which mimics a trial-and-error process of adaptation is introduced and solved. The model, which can be thought of as a diffusion process with memory, is characterized by two properties, efficiency and persistence. We establish a link between these properties and determine two transitions for each property, a percolation transition and a depinning transition. If the adaptation process is iterated, the antipersistent state becomes an attractor of the dynamics. Extensions to higher dimensions are briefly discussed.Comment: 4 pages, 4 figures, submitted to publicatio

Density and viscosity ratio effects in droplet formation

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76102/1/AIAA-2000-855-537.pd

Free-surface turbulent flows

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76589/1/AIAA-1997-648-448.pd

Design and Performance of Low Reynolds Number Airfoils for Solar-Powered Flight

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76748/1/AIAA-2008-316-816.pd

PIV investigation of an aperiodic forced mixing layer

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/77290/1/AIAA-1993-3241-146.pd

HPIV study of the interaction of a vortex ring with a solid wall

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76079/1/AIAA-1993-413-819.pd

Direct Force Measurements During Transient Flow about Pitching Flat Plates

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/143125/1/6.2017-0995.pd

Investigation of Drop Formation by a Vortex Ring in Microgravity

An investigation of drop formation by a vortex ring propagating through one or more fluid interfaces in microgravity is described. The main goal of the research is to determine the dynamics of drop formation by vortical flows in the capillary limit with large density change across the intel-face. Dimensional analysis shows that in microgravity experiments the capillary limit can be studied using a relatively large vortex ring diameter to facilitate experimental characterization of the interaction. Results obtained in density matched systems are reviewed to illustrate the complex nature of these interactions